diff --git a/data/grid5000/sites/sophia/clusters/mercantour5/mercantour5.json b/data/grid5000/sites/sophia/clusters/mercantour5/mercantour5.json
index a7ffddbcf1ca84036cab6ed45e1744034e3782eb..a79050b46e8ca8b545b92027c7894e692f4454a3 100644
--- a/data/grid5000/sites/sophia/clusters/mercantour5/mercantour5.json
+++ b/data/grid5000/sites/sophia/clusters/mercantour5/mercantour5.json
@@ -2,7 +2,7 @@
   "boot_type": "bios",
   "created_at": "Mon, 24 Feb 2025 00:00:00 GMT",
   "exotic": false,
-  "kavlan": true,
+  "kavlan": false,
   "manufactured_at": "2019-07-30",
   "metrics": [
     {
diff --git a/data/grid5000/sites/sophia/clusters/mercantour5/nodes/mercantour5-1.json b/data/grid5000/sites/sophia/clusters/mercantour5/nodes/mercantour5-1.json
index 3e3c8c0cb61f654e8c284eb994f1cd486fb843c8..125254f02925d7c65b0fdf35de069437b0689012 100644
--- a/data/grid5000/sites/sophia/clusters/mercantour5/nodes/mercantour5-1.json
+++ b/data/grid5000/sites/sophia/clusters/mercantour5/nodes/mercantour5-1.json
@@ -20,50 +20,6 @@
     "warranty_end": "2026-07-31"
   },
   "exotic": false,
-  "kavlan": {
-    "eth0": {
-      "kavlan-1": "192.168.196.42",
-      "kavlan-11": "10.7.229.42",
-      "kavlan-12": "10.11.229.42",
-      "kavlan-13": "10.15.229.42",
-      "kavlan-14": "10.19.229.42",
-      "kavlan-16": "10.27.229.42",
-      "kavlan-17": "10.31.229.42",
-      "kavlan-18": "10.35.229.42",
-      "kavlan-2": "192.168.212.42",
-      "kavlan-20": "10.43.229.42",
-      "kavlan-21": "10.47.229.42",
-      "kavlan-3": "192.168.228.42",
-      "kavlan-4": "10.32.4.42",
-      "kavlan-5": "10.32.68.42",
-      "kavlan-6": "10.32.132.42",
-      "kavlan-7": "10.32.196.42",
-      "kavlan-8": "10.33.4.42",
-      "kavlan-9": "10.33.68.42"
-    }
-  },
-  "kavlan6": {
-    "eth0": {
-      "kavlan-1": "2001:660:4406:880:3::2a",
-      "kavlan-11": "2001:660:4406:1a0:803::2a",
-      "kavlan-12": "2001:660:4406:2a0:803::2a",
-      "kavlan-13": "2001:660:4406:4a0:803::2a",
-      "kavlan-14": "2001:660:4406:5a0:803::2a",
-      "kavlan-16": "2001:660:4406:7a0:803::2a",
-      "kavlan-17": "2001:660:4406:9a0:803::2a",
-      "kavlan-18": "2001:660:4406:8a0:803::2a",
-      "kavlan-2": "2001:660:4406:881:3::2a",
-      "kavlan-20": "2001:660:4406:3a0:803::2a",
-      "kavlan-21": "2001:660:4406:6a0:803::2a",
-      "kavlan-3": "2001:660:4406:882:3::2a",
-      "kavlan-4": "2001:660:4406:890:3::2a",
-      "kavlan-5": "2001:660:4406:891:3::2a",
-      "kavlan-6": "2001:660:4406:892:3::2a",
-      "kavlan-7": "2001:660:4406:893:3::2a",
-      "kavlan-8": "2001:660:4406:894:3::2a",
-      "kavlan-9": "2001:660:4406:895:3::2a"
-    }
-  },
   "main_memory": {
     "ram_size": 412316860416
   },
@@ -144,7 +100,7 @@
       "interface": "Ethernet",
       "ip": "172.16.130.42",
       "ip6": "2001:660:4406:800:3::2a",
-      "kavlan": true,
+      "kavlan": false,
       "mac": "6c:2b:59:9c:4a:32",
       "management": false,
       "model": "I350 Gigabit Network Connection",
diff --git a/data/grid5000/sites/sophia/clusters/mercantour5/nodes/mercantour5-2.json b/data/grid5000/sites/sophia/clusters/mercantour5/nodes/mercantour5-2.json
index c9e9ea1ea84a313f22f5e7e0e12761e6eed639ba..a35e6e3e0055ce66fe944b0a2705e1a688ce2cff 100644
--- a/data/grid5000/sites/sophia/clusters/mercantour5/nodes/mercantour5-2.json
+++ b/data/grid5000/sites/sophia/clusters/mercantour5/nodes/mercantour5-2.json
@@ -20,50 +20,6 @@
     "warranty_end": "2026-07-31"
   },
   "exotic": false,
-  "kavlan": {
-    "eth0": {
-      "kavlan-1": "192.168.196.43",
-      "kavlan-11": "10.7.229.43",
-      "kavlan-12": "10.11.229.43",
-      "kavlan-13": "10.15.229.43",
-      "kavlan-14": "10.19.229.43",
-      "kavlan-16": "10.27.229.43",
-      "kavlan-17": "10.31.229.43",
-      "kavlan-18": "10.35.229.43",
-      "kavlan-2": "192.168.212.43",
-      "kavlan-20": "10.43.229.43",
-      "kavlan-21": "10.47.229.43",
-      "kavlan-3": "192.168.228.43",
-      "kavlan-4": "10.32.4.43",
-      "kavlan-5": "10.32.68.43",
-      "kavlan-6": "10.32.132.43",
-      "kavlan-7": "10.32.196.43",
-      "kavlan-8": "10.33.4.43",
-      "kavlan-9": "10.33.68.43"
-    }
-  },
-  "kavlan6": {
-    "eth0": {
-      "kavlan-1": "2001:660:4406:880:3::2b",
-      "kavlan-11": "2001:660:4406:1a0:803::2b",
-      "kavlan-12": "2001:660:4406:2a0:803::2b",
-      "kavlan-13": "2001:660:4406:4a0:803::2b",
-      "kavlan-14": "2001:660:4406:5a0:803::2b",
-      "kavlan-16": "2001:660:4406:7a0:803::2b",
-      "kavlan-17": "2001:660:4406:9a0:803::2b",
-      "kavlan-18": "2001:660:4406:8a0:803::2b",
-      "kavlan-2": "2001:660:4406:881:3::2b",
-      "kavlan-20": "2001:660:4406:3a0:803::2b",
-      "kavlan-21": "2001:660:4406:6a0:803::2b",
-      "kavlan-3": "2001:660:4406:882:3::2b",
-      "kavlan-4": "2001:660:4406:890:3::2b",
-      "kavlan-5": "2001:660:4406:891:3::2b",
-      "kavlan-6": "2001:660:4406:892:3::2b",
-      "kavlan-7": "2001:660:4406:893:3::2b",
-      "kavlan-8": "2001:660:4406:894:3::2b",
-      "kavlan-9": "2001:660:4406:895:3::2b"
-    }
-  },
   "main_memory": {
     "ram_size": 412316860416
   },
@@ -144,7 +100,7 @@
       "interface": "Ethernet",
       "ip": "172.16.130.43",
       "ip6": "2001:660:4406:800:3::2b",
-      "kavlan": true,
+      "kavlan": false,
       "mac": "6c:2b:59:9c:3f:3a",
       "management": false,
       "model": "I350 Gigabit Network Connection",
diff --git a/data/grid5000/sites/sophia/clusters/mercantour5/nodes/mercantour5-3.json b/data/grid5000/sites/sophia/clusters/mercantour5/nodes/mercantour5-3.json
index 0775fe61000f1db15ad692db9d077d5f9b0b617f..157523172813ba7bca239200521fe8368ccc8c87 100644
--- a/data/grid5000/sites/sophia/clusters/mercantour5/nodes/mercantour5-3.json
+++ b/data/grid5000/sites/sophia/clusters/mercantour5/nodes/mercantour5-3.json
@@ -20,50 +20,6 @@
     "warranty_end": "2026-07-31"
   },
   "exotic": false,
-  "kavlan": {
-    "eth0": {
-      "kavlan-1": "192.168.196.44",
-      "kavlan-11": "10.7.229.44",
-      "kavlan-12": "10.11.229.44",
-      "kavlan-13": "10.15.229.44",
-      "kavlan-14": "10.19.229.44",
-      "kavlan-16": "10.27.229.44",
-      "kavlan-17": "10.31.229.44",
-      "kavlan-18": "10.35.229.44",
-      "kavlan-2": "192.168.212.44",
-      "kavlan-20": "10.43.229.44",
-      "kavlan-21": "10.47.229.44",
-      "kavlan-3": "192.168.228.44",
-      "kavlan-4": "10.32.4.44",
-      "kavlan-5": "10.32.68.44",
-      "kavlan-6": "10.32.132.44",
-      "kavlan-7": "10.32.196.44",
-      "kavlan-8": "10.33.4.44",
-      "kavlan-9": "10.33.68.44"
-    }
-  },
-  "kavlan6": {
-    "eth0": {
-      "kavlan-1": "2001:660:4406:880:3::2c",
-      "kavlan-11": "2001:660:4406:1a0:803::2c",
-      "kavlan-12": "2001:660:4406:2a0:803::2c",
-      "kavlan-13": "2001:660:4406:4a0:803::2c",
-      "kavlan-14": "2001:660:4406:5a0:803::2c",
-      "kavlan-16": "2001:660:4406:7a0:803::2c",
-      "kavlan-17": "2001:660:4406:9a0:803::2c",
-      "kavlan-18": "2001:660:4406:8a0:803::2c",
-      "kavlan-2": "2001:660:4406:881:3::2c",
-      "kavlan-20": "2001:660:4406:3a0:803::2c",
-      "kavlan-21": "2001:660:4406:6a0:803::2c",
-      "kavlan-3": "2001:660:4406:882:3::2c",
-      "kavlan-4": "2001:660:4406:890:3::2c",
-      "kavlan-5": "2001:660:4406:891:3::2c",
-      "kavlan-6": "2001:660:4406:892:3::2c",
-      "kavlan-7": "2001:660:4406:893:3::2c",
-      "kavlan-8": "2001:660:4406:894:3::2c",
-      "kavlan-9": "2001:660:4406:895:3::2c"
-    }
-  },
   "main_memory": {
     "ram_size": 412316860416
   },
@@ -144,7 +100,7 @@
       "interface": "Ethernet",
       "ip": "172.16.130.44",
       "ip6": "2001:660:4406:800:3::2c",
-      "kavlan": true,
+      "kavlan": false,
       "mac": "6c:2b:59:9c:4a:6d",
       "management": false,
       "model": "I350 Gigabit Network Connection",
diff --git a/data/grid5000/sites/sophia/clusters/mercantour5/nodes/mercantour5-4.json b/data/grid5000/sites/sophia/clusters/mercantour5/nodes/mercantour5-4.json
index cb2d48c8683ba20e84c29378b65cb6a2584c09ce..64dd4dd3b74e0b80428a8fea7f695242df678880 100644
--- a/data/grid5000/sites/sophia/clusters/mercantour5/nodes/mercantour5-4.json
+++ b/data/grid5000/sites/sophia/clusters/mercantour5/nodes/mercantour5-4.json
@@ -20,50 +20,6 @@
     "warranty_end": "2026-07-31"
   },
   "exotic": false,
-  "kavlan": {
-    "eth0": {
-      "kavlan-1": "192.168.196.45",
-      "kavlan-11": "10.7.229.45",
-      "kavlan-12": "10.11.229.45",
-      "kavlan-13": "10.15.229.45",
-      "kavlan-14": "10.19.229.45",
-      "kavlan-16": "10.27.229.45",
-      "kavlan-17": "10.31.229.45",
-      "kavlan-18": "10.35.229.45",
-      "kavlan-2": "192.168.212.45",
-      "kavlan-20": "10.43.229.45",
-      "kavlan-21": "10.47.229.45",
-      "kavlan-3": "192.168.228.45",
-      "kavlan-4": "10.32.4.45",
-      "kavlan-5": "10.32.68.45",
-      "kavlan-6": "10.32.132.45",
-      "kavlan-7": "10.32.196.45",
-      "kavlan-8": "10.33.4.45",
-      "kavlan-9": "10.33.68.45"
-    }
-  },
-  "kavlan6": {
-    "eth0": {
-      "kavlan-1": "2001:660:4406:880:3::2d",
-      "kavlan-11": "2001:660:4406:1a0:803::2d",
-      "kavlan-12": "2001:660:4406:2a0:803::2d",
-      "kavlan-13": "2001:660:4406:4a0:803::2d",
-      "kavlan-14": "2001:660:4406:5a0:803::2d",
-      "kavlan-16": "2001:660:4406:7a0:803::2d",
-      "kavlan-17": "2001:660:4406:9a0:803::2d",
-      "kavlan-18": "2001:660:4406:8a0:803::2d",
-      "kavlan-2": "2001:660:4406:881:3::2d",
-      "kavlan-20": "2001:660:4406:3a0:803::2d",
-      "kavlan-21": "2001:660:4406:6a0:803::2d",
-      "kavlan-3": "2001:660:4406:882:3::2d",
-      "kavlan-4": "2001:660:4406:890:3::2d",
-      "kavlan-5": "2001:660:4406:891:3::2d",
-      "kavlan-6": "2001:660:4406:892:3::2d",
-      "kavlan-7": "2001:660:4406:893:3::2d",
-      "kavlan-8": "2001:660:4406:894:3::2d",
-      "kavlan-9": "2001:660:4406:895:3::2d"
-    }
-  },
   "main_memory": {
     "ram_size": 412316860416
   },
@@ -144,7 +100,7 @@
       "interface": "Ethernet",
       "ip": "172.16.130.45",
       "ip6": "2001:660:4406:800:3::2d",
-      "kavlan": true,
+      "kavlan": false,
       "mac": "6c:2b:59:9a:05:c4",
       "management": false,
       "model": "I350 Gigabit Network Connection",
diff --git a/input/grid5000/sites/sophia/clusters/mercantour5/mercantour5.yaml b/input/grid5000/sites/sophia/clusters/mercantour5/mercantour5.yaml
index 2ce78d4a72b1015f93e50237ff9f0f455d53a413..902f4668da6a2cba155e0af08fb2305875d90e6e 100644
--- a/input/grid5000/sites/sophia/clusters/mercantour5/mercantour5.yaml
+++ b/input/grid5000/sites/sophia/clusters/mercantour5/mercantour5.yaml
@@ -1,7 +1,7 @@
 ---
 model: Dell PowerEdge C6420
 created_at: 2025-02-24
-kavlan: true
+kavlan: false
 boot_type: bios
 exotic: false
 queues: